Carbureter for gas-engines.



G. D. SHAIN. CARBURETER FOR GAS ENGINES. APPLICATION FILED 11111 29, 1911.

Patented Sept. 26, 1911.

F gine and the pressure of the uld fuel under it UNITED STATES PATENT OFFICE.

CHARLES I). 'SHA IN, 0F ROGKAWAY PARK, NEW YORK.

CARBURETER FOR GASENGINES.

Specification of Letters Patent.

Patented Sept. 26, 1911.

' Application filed May 29, 1911. Serial No. 630,247.

To all whom it may concern:

-Be it known that I, CHARLES D. SIIAIN, a citizen of the United States, and a resident of Rocha way Park, in the county of Queens and State of New York, have invented a certain new and useful Carbureter for Gas-Engines.

My invention relates to improvements in carbureters in which a ball valve or sprayer is used (see my patents June 20th, 1905, No. 792,670, and March 17th, 1DO8,N0.882,023); and the object of my invention is to automatically increase the sensitiveness of the movement of the ball valve or sprayer. I attain this object by the mechanism illustrated in the accompanying drawings in which Figure 1, is a vertical section of the carbureter; Fig. 2, is a bottom view of the carbureter with the pipe Y removed; Fig. 3, is a vertical view of a partly hollow plug containing a screen and bushing or nozzle; Fig. 4, is a sectional view of a shaft, cam and milled nut looking from right to left; Fig. 5, is a bottom view of a batllc plate hinged to a square head screw, the balllc plate having a tilting bar; Figs. 6 and 7 are respectively side View and top view of same. The arrows at the bottom of Fig. i. show the air inlets and the arrowat the top, the mixture outlet to engine. 7

Similar letters refer throughout the drawings.

In Fig. .1, Y is a pipe through which gasoto similar parts lone or liquid fuel flows into the chamber T.

In this chamber T, is inserted a partly hollow plug K, with a screw thread; around a part of the plug K is placed a screen S for screening the gasolene or liquid fuel. in the top of the plug K i. a bushing or nozzle L (see l igs. l and 3). The bushing or nozzle T has a hole in the center of it, the size of which is determined by the maximum flow oi gasolene or liquid fuel required for a specific size of engine. The gasolene or liq nid 'l'ucl after entering the chamber 'l, passes through the screen S and the holes K into the hollow part. ol the plug l\' and from there it is sucked by the engine or forced by the pressure behind it. through the bushing or nozzle L into the tube 1)., where its llow is in a measure arrested by the ball valve or sprayer A. The lift. oi the ball valve or sprayer is caused by suction from the engasolone or liqand is regulated by the ec- Upon turning over centric cam H in the center of the shaft E (Fig. l). The shaft E and the c. m H, are turned by the milled nut I, which is held in any fixed position desired, by the ball spring 0.

a a are a number of 'air ports extending from the bottom of the vaporizer or carburetor, (see Fig. 2) n p to the carbureting chamber X. These ports are for the purposes of furnishing the air supply.

6 (Figs. 1, 5, 6 and 7) is a battle plate, provided with a tilting bar g. The battle plate 0 is hinged by the pin hpassing through its two bent up parts f and the square head of the screw 0. The screw 0 passes through the outer easing of the earlmreter (Fig. 1.) and is held in place b'y the nutol. Fig. 1

shows the batllc plate a slightly raised by light suction. The battle plate a in a. state of rest partly covers the air ports 0. (Fig. 1,) the tilting bar 9 liesdirectly under the ball valve or sprayer A, but of contact with it. the engine, the suction causes the battle plate 6 intervening between it and the air ports a, to raise; the tilting bar 9 follows and disturbs or lifts the ball A, this actionfbeing very sensitive. The butterfly valve N, is operated by the bent lever Z),'shown with fork and cotter pin (Fig. l). The gasolene or liquid fuel alfter being mixed with air in the carbureting chamber X, passes out of the carburetor at C.

The carburetor can be made in several ways; but I prefer to carry out this feature of my invention as shown in the drawings.

\Vhat I do claim as my invention and desire to secure by Letters Patent is:--

l. in a carburet'm', a suction tube, a tube for the delivery ol' gasolelie thereto. a ball and seat. therefor p"ovided in the upper end ol the gasoh-ne tube in combination with a hinged ballle plate operated by the suction of air. and the bar carried by said ballle plate engaging said ball, to lift the same l'roni its seat pro n rlionally to the movement of the ballle plate by the current of air, substantially as set forth.

L. The combination in a carburetor of a butterfly valve operated by a lever, a casing forming a earbureling chamber, provided with air passages, extemliug vertically through the lower wall of the casing; :1 ba l valve or sprayer located in the earbureting chamber and sealed in a support; a passage through the support for the delivery of gascarbureting chamber, the ball valve controlling this delivery; an eccentric cam on a shaft, a milled nut on one end of the shaft, and a ball spring, extending from the carbureter casing and contacting with the milled nut, the cam and shaft being located above the ball andoperated by the milled nut, Which is held in any desired position by the ball spring; plug and bushing or nozzle for the passage of gasolene or liquid fuel,-thr0ugh the Said support into the carbureting chamber; the p'artly hollow screened plug having in its top abushing or nozzle with a hole through a partly hollow screened its center, the proper size forsupplying the or liquid; fuel re-v sensitiveness of the disturbance or lift of the ball valve or sprayer, due to the suction of the engine; all substantially as set forth.

itness myhand this twenty-sixth day'of May,- 1911, at the city of New York, in the county and State of New York.

a v CHAS. SHAIN. W'itnesses: v

FRANCIS L. CoLELL, Jos. J. SMITH. 

